Foreground object detection in a video surveillance system
US8218819B2 · kind B2 · utility
39Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30241
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for detecting foreground objects in a scene captured by a surveillance system and tracking the detected foreground objects from frame to frame in real time. A motion flow field is used to validate foreground objects(s) that are extracted from the background model of a scene. Spurious foreground objects are filtered before the detected foreground objects are provided to the tracking stage. The motion flow field is also used by the tracking stage to improve the performance of the tracking as needed for real time surveillance applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.